<!DOCTYPE html>
<html lang="en">
<head>
<?php
include_once("database.php");
?>
    <meta name="keywords" content="<?php echo $mywebkey;?>">
    <meta name="description" content="<?php echo $mywebdescribe;?>">
    <meta charset="UTF-8">
    <title><?php  echo $mywebtitle; ?></title>
    <style type="text/css">
        #ul{
            width: 1100px;
            height: 30px;
            margin: 0 auto;
        }
        #ul li{
            float: left;
           
            list-style: none;
            width: 108px;
            height: 30px;
            text-align: center;
            line-height: 30px;
            background-color: #e8e7e3;

        }
        #ul li a{
            text-decoration: none;
            color: #3f3f3f;
        }
        .div1{
            margin-top: 30px;
            margin-bottom: 50px;
        }
        .div2{
            width: 1100px;
            height: 600px;
            margin:  0 auto;
        }
    </style>
</head>
<body>
    <?php
    include_once("header.php");
    ?>
<div class="div1">
    <ul id="ul">
        <li><a href="addbook.php" target="iframe_main">新书入库</a></li>
        <li><a href="selectbook.php" target="iframe_main">查询图书</a></li>
        <li><a href="updatebook.php" target="iframe_main">图书修改</a></li>
        <li><a href="deletebook.php" target="iframe_main">图书删除</a></li>
        <li><a href="addstudent.php" target="iframe_main">学生信息</a></li>
        <li><a href="selectstudent.php" target="iframe_main">查询学生</a></li>
        <li><a href="deletestudent.php" target="iframe_main">删除学生</a></li>
        <li><a href="updatastudent.php" target="iframe_main">修改学生</a></li>
        <li><a href="others.php" target="iframe_main">其他信息</a></li>
        <li><a href="about.php" target="iframe_main">本站设置</a></li>
    </ul>
</div>
<div class="div2">
<iframe src="iframe-main.html" name="iframe_main" frameborder="1" width="1100" height="600">如果看到此处内容,则说明浏览器版本过低,升级浏览器即可!
</iframe>
</div>
<?php
include_once("footer.php");
?>
</body>
</html>